EP 0316946 A2 19890524 - Video signal hard copying apparatus.
Title (en)
Video signal hard copying apparatus.
Title (de)
Bildsignalgerät zur Erzeugung von Hardcopies.
Title (fr)
Appareil de signaux de vidéo avec sortie sur support en papier.
Publication
Application
Priority
JP 29061387 A 19871119
Abstract (en)
A video signal hard copying apparatus for printing on a copying sheet of paper input color video signals including R, G, B signals, and horizontal and vertical synchronizing signals as a color image signal includes D/A converter means for generating reference voltages each changing stepwise, comparator means for comparing the color image signal with the reference voltages to provide digital signal patters composed of logical "0s" and/or logical "1s" indicative of the state of the color image signal, and memory means for temporarily storing the digital signal patterns for latter associated processings. An automatic setting apparatus for generating a video signal sampling clock in the video signal hard copying apparatus includes display means for displaying marks thereon separated by a predetermined drawn distance, memory means for storing the predetermined drawn data, storage state judging and adjusting menas for judging whether or not the drawn distance is stored at a correct location in the memory means which location is estimated by the storage state judging and adjusting means itself, and further outputting a frequency dividing ratio setting signal, and frequency multiplier means for generating a sampling clock for sampling the input video signal, the sampling clock being employed for the foregoing judgement by the storage state judging and adjusting means until a correct sampling clock is established.
IPC 1-7
IPC 8 full level
B41J 2/00 (2006.01); G06F 3/12 (2006.01); G06F 3/153 (2006.01); G06K 15/12 (2006.01); H04N 1/00 (2006.01); H04N 1/387 (2006.01); H04N 1/40 (2006.01); H04N 9/79 (2006.01)
CPC (source: EP US)
H04N 1/00291 (2013.01 - EP US); H04N 1/00294 (2013.01 - EP US); H04N 1/3875 (2013.01 - EP US); H04N 1/40 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0316946 A2 19890524; EP 0316946 A3 19900321; EP 0316946 B1 19940518; DE 3889627 D1 19940623; DE 3889627 T2 19940901; JP H01133494 A 19890525; US 4974069 A 19901127
DOCDB simple family (application)
EP 88119229 A 19881118; DE 3889627 T 19881118; JP 29061387 A 19871119; US 27289788 A 19881118